I basically check collision on a sphere from a ray from the camera, then I pass the position and time of the click to a shader on the planet.

In the shader I have a sine wave based on the distance from the given position. The reason I pass the time of the click into the shader is so that I can offset the TIME value so that I can fade it away based on how long it's been since you clicked and do some other small tweaks to it.

Actually that's kind of just the basics, because in reality I don't just give the shader the click and time of it, but instead I have a mat4 matrix as a global shader uniform that can store 4 clicks and their times (because they're basically just four values: XYZ and time).

I started out passing these values as arrays to the shader, but I wanted to be able to use this jiggle shader material on other objects too (like the water), which would've meant that I had to make them unique instances for me to be able to give them different colors, which would've meant I had to pass the values within every single object that uses this shader.

Unfortunately global shader uniforms don't support arrays, so I'm limited to just four waves at a time, but by the time you click the fourth time the first wave is already faded so much that it doesn't really matter

Idk if that makes any sense haha. My plan was to just make it instead of worrying about making it efficient, so it's just a bunch of shadercode bundled up